> -----Original Message----- > From: Rakesh Kudurumalla > Sent: Tuesday, January 10, 2023 12:12 PM > To: Ori Kam <or...@nvidia.com>; Jerin Jacob <jerinjac...@gmail.com>; > Stephen Hemminger <step...@networkplumber.org> > Cc: NBU-Contact-Thomas Monjalon (EXTERNAL) <tho...@monjalon.net>; > Ferruh Yigit <ferruh.yi...@amd.com>; Andrew Rybchenko > <andrew.rybche...@oktetlabs.ru>; dev@dpdk.org; NBU-Contact-Adrien > Mazarguil (EXTERNAL) <adrien.mazarg...@6wind.com> > Subject: RE: [PATCH 1/3] lib: dpdk spec to skip red for ingress policer > > > > > -----Original Message----- > > From: Ori Kam <or...@nvidia.com> > > Sent: Monday, December 26, 2022 10:30 PM > > To: Jerin Jacob <jerinjac...@gmail.com>; Stephen Hemminger > > <step...@networkplumber.org> > > Cc: Rakesh Kudurumalla <rkuduruma...@marvell.com>; NBU-Contact- > Thomas > > Monjalon (EXTERNAL) <tho...@monjalon.net>; Ferruh Yigit > > <ferruh.yi...@amd.com>; Andrew Rybchenko > > <andrew.rybche...@oktetlabs.ru>; dev@dpdk.org; NBU-Contact-Adrien > > Mazarguil (EXTERNAL) <adrien.mazarg...@6wind.com> > > Subject: [EXT] RE: [PATCH 1/3] lib: dpdk spec to skip red for ingress > > policer > > > > External Email > > > > ---------------------------------------------------------------------- > > Hi All, > > > > > -----Original Message----- > > > From: Jerin Jacob <jerinjac...@gmail.com> > > > Sent: Thursday, 22 December 2022 7:27 > > > > > > On Thu, Dec 22, 2022 at 8:32 AM Stephen Hemminger > > > <step...@networkplumber.org> wrote: > > > > > > > > On Thu, 22 Dec 2022 07:09:02 +0530 Rakesh Kudurumalla > > > > <rkuduruma...@marvell.com> wrote: > > > > > > > > > Dropping of packets based on RED can be skipped with meter > > > > > action, when RED is configured using > > > > > rte_eth_cman_config_set() > > > > > > > > > > Signed-off-by: Rakesh Kudurumalla <rkuduruma...@marvell.com> > > > > > > > > Should this be more general and apply to all congestion management > > > > options. Assuming the hardware can do something better than RED. > > > > > > Yes. We can use "enum rte_cman_mode mode" in the descriptor to > > > future- proof. > > > > I'm missing the idea of this new action, I understand that is related > > to Jerin congestion patches. > > But I fail to see why we need it? Is it to mark some metadata that > > will have some effect on the congestion result? (I assume the system > > is implemented in the HW) > > Yes. It is implemented in HW. Congestion management is applied on ethdev > Rx queue using rte_eth_cman_config() API. Once it is configured, it applies to > all the packets that steer towards that particular ethdev Rx queue. This > feature help to skip the congestion management processing based on the > packet color identified by the rte_flow meter object. For example, If one Rx > queue configured as RED congestion and application wants to bypass the > RED congestion processing for all GREEN color packet can be expressed > though this API proposal.
Hi Ori Kam, Let me know if above information would give clear idea on skip RED action
